Door closer



Feb. 20, 1923.

L. ZlMMERMAN DOOR CLOSER Filed Sept.

mp, J.

L.ZIMMERMAN BY A'ITORNEY Patented Feb. 20, 1923..

LEVI ZIMIVIEEMAN, OF WEST NEWTON, PENNSYLVANIA.

DOOR CLOSER.

Application filed September 18, 1920. Serial No. 411,135.

To all whom it may concern:

Be it known that I, LEVI ZIMMERMAN, a citizen of the United States, residing at West Newton, in the county of Westmoreland and State of Pennsylvania, have invented new and useful Improvements in Door Closers, of which the following is a specification.

This invention relates to door closers, and more particularly to a door closer adapted for use in connection with a door mounted to swing in either direction.

One of the main objects of the invention is to provide a door closer of simple construction and operation which may be readily applied, and which will normally hold the door closed while preventing slamming of the same. A further object is to provide a closer which, when applied, will be concealed and will be practically noiseless in its op eration. Further objects will appear from the detailed description.

In the drawings:

Figure 1 is a top plan view of a door and associated parts of conventional type to which a closer constructed in accordance with my invention is applied.

Figure 2 is a front view of the closer as applied.

Figure 3 is a side view of the closer as applied, partly in section.

Figure 4 is a fragmentaryview, partly in section, of the upper portion of the door and frame.

A door 1 which may be of any suitable or preferred type is provided at one of its upper corners with a bore 2 communicating at its lower end with a reduced bore 3. A pin 1 is slidable in bores 2 and 3 and is provided with an annular shoulder 5 between which and the lower end of bore 2 is confined an expansion spring 6. This spring serves to normally hold pin 4 raised so as to engage in a co-operating recess 7 in top bar 8 of the door frame. At its lower corner. and in alignment with pin 4., the door is provided with a squared stud 9. This stud fits into a corresponding recess in a disc 10 seated in a socket member 11 secured in door sill 12,

disc 10 being mounted for free turning move.

ment in either direction.

Disc 10 is provided with a depending stem 13 which projects below sill 12. Stem 13 extends through fork 14c at the inner end of an arm 15, this arm being pivoted to stem 13 by a pin 16 for rocking movement about a horizontal axis. A relatively heavy roller 17 is rotatably mounted on the outer end of arm 15 and travels upon a track 18 disposed concentric with stem 13, this track being inclined. downwardly toward the outer or free edge of the door. The track is preferably, though not necessarily, provided with y a depression 19 at its central portion which receives roller 17 so as to normally hold the same against movement thus holding door 1 in closed position, it being understood that arm 15 is positioned in alignment with door 1. As will be obvious from Figures 2 and 3 of the drawings, when door 1 is swung in either direction into open position roller or weight member 17 is moved upwardly along track 18 toward one end thereof. When the door is released member 17 is caused, by

gravity, to roll down the track to the lowermost or central portion thereof. This serves, through the medium of arm 15 and associated parts, to move the door into closed position in which position it is normally held by weight member 17. The pivotal connection 16 between arm 15 and stem or member 13 permits vertical movement of roller or member 17 independently of the door during travel of this member upon the track.

As will be understood, slight changes details of construction and arrangement of the difl'erent parts of the invention may be resorted to without departing from thefield and scope of the same, and I intend to include all such variations, as fall within the scope of the appended claims. in this application in which the preferred form only of my invention is disclosed.

lVhat I claim is 1. In combination with a door and a sill therefor, a socket member secured in said sill. a disc mounted in said member and provided with a depending stem, a stud secured to the door and connected to the disc for movement therewith. said stem and the stud being disposed coaxially, an inclined tracl; concentric with the stem, an arm pivoted at its inner end to the stem, and a Weight member rotatably mounted on the outer end of the arm and traveling on said track.

2. In combination with a door mounted 5 to swing on a vertical axis a member ositioned below the door and disposed coaxially with the axis of movement of said door, an

arm pivoted at its inner end to said member, an inclined track disposed concentric with the member, and a weight member rotatably 10 mounted on the outer end of the arm and traveling on the track.

In testimony whereof I aflix my signature.

LEVI ZIMMERMAN. 

